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220 server is not acceptin connections

Posted on 2008-10-24
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Last Modified: 2012-08-13
Hi guys,

Looked though the site and have seen similar questions, havent been able to resolve the issue with the answers though.

Have a client that not been able to send emails to AOL addresses (aomgst some others), this has only been for the last two weeks or so, as they were able before, They are using Exachnge 2003 and are on a BT connection, we have RDNS setup for our domain, and i have checked DNSBL.info for spam listings, they were on Five-Ten.SRC but this was removed a few says back now.

when using SMTPDiag I get the following results
***********************
C:\SmtpDiag>SmtpDiag.exe user@mydomain.com user@aol.com

Searching for Exchange external DNS settings.
Computer name is your-computer.
VSI 1 has the following external DNS servers:
There are no external DNS servers configured.

Checking SOA for aol.com.
Checking external DNS servers.
Checking internal DNS servers.
SOA serial number match: Passed.

Checking local domain records.
Checking MX records using TCP: yourdomain.com.
Checking MX records using UDP: yourdomain.com.
Both TCP and UDP queries succeeded. Local DNS test passed.

Checking remote domain records.
Checking MX records using TCP: aol.com.
Checking MX records using UDP: aol.com.
Both TCP and UDP queries succeeded. Remote DNS test passed.

Checking MX servers listed for user@aol.com.
Connecting to mailin-04.mx.aol.com [64.12.138.57] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-04.mx.aol.com.
Connecting to mailin-04.mx.aol.com [64.12.138.88] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-04.mx.aol.com.
Connecting to mailin-03.mx.aol.com [205.188.252.17] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-03.mx.aol.com.
Connecting to mailin-03.mx.aol.com [64.12.138.153] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-03.mx.aol.com.
Connecting to mailin-02.mx.aol.com [64.12.137.89] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-02.mx.aol.com.
Connecting to mailin-02.mx.aol.com [205.188.155.72] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-02.mx.aol.com.
Connecting to mailin-02.mx.aol.com [64.12.138.120] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-02.mx.aol.com.
Connecting to mailin-01.mx.aol.com [64.12.139.249] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-01.mx.aol.com.
Connecting to mailin-01.mx.aol.com [205.188.159.57] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-01.mx.aol.com.
Connecting to mailin-04.mx.aol.com [205.188.159.216] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-04.mx.aol.com.
Connecting to mailin-03.mx.aol.com [205.188.109.56] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-03.mx.aol.com.
Connecting to mailin-02.mx.aol.com [205.188.249.91] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-02.mx.aol.com.
Connecting to mailin-01.mx.aol.com [205.188.156.248] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-01.mx.aol.com.
C:\SmtpDiag>
***************************
I have seen resolutions of creating a seperate SMTP connector for aol addresses but this does not seem to have worked, maybe im doing it incorrectly,

ESM - Connectors - New SMTP Connector -  Forward all mail to this connector (mail.biconncet.com) - add my mail server as local bridgehead - outbound security annoymouse (as stated by article on support forum - add address space of aol.com cost of 1 - not sure if im suppose to tick allow messages to be routed to these domains but i did... - restarted MS Exchange Info Store, Route Eng and Sys Attendant services.

After doing this ive ran the SMTP Diag and still get the same issue.

any help would be greatly appreciated.

Thanks
0
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Question by:-Adrian-
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4 Comments
 
LVL 33

Accepted Solution

by:
Exchange_Geek earned 375 total points
ID: 22795176
Why not perform a simple telnet test to the MX record of AOL - what is the result ???
Also, do you have any Cisco router between you and the internet ???
0
 

Author Comment

by:-Adrian-
ID: 22795233
Sorry forgot to say tried that, connetion drops straight away.
***************
554- (RTR:BB)  http://postmaster.info.aol.com/errors/554rtrbb.html
554  Connecting IP: 81.136.142.92

Connection to host lost.
****************
0
 

Author Comment

by:-Adrian-
ID: 22795244
Okay, is it stupid of me to assume that because we anre not on any RBL that we would not be BL by AOL? or do they use their own one?
0
 

Author Comment

by:-Adrian-
ID: 22795656
Okay spoken with Bt who are going to contact AOL to Whitelist us, as i found this via telnet session and the fact that he was the first/only person to help with the issue will award points to Exchange Geek..

thanks for your help.
0

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